Multi-part kit system for the preparation of a disinfectant of the peracetic acid type

Inactive Publication Date: 2010-09-09
LANXESS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]The present invention provides an easy-to-use multi-part kit system for the preparation of a disinfectant of the peracetic acid type which is distinguished by not only a long shelf life of its parts of, for example, 18 to 24 months and more, but also a short activ

Problems solved by technology

However, such aqueous equilibrium peracetic acid solutions make high demands with regard to shipping and storage because of thei

Method used

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  • Multi-part kit system for the preparation of a disinfectant of the peracetic acid type
  • Multi-part kit system for the preparation of a disinfectant of the peracetic acid type
  • Multi-part kit system for the preparation of a disinfectant of the peracetic acid type

Examples

Experimental program
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Example

Examples

[0075]If not stated otherwise, % means weight-%.

Example

Determination of H2O2 and PAAH (Peracetic Acid) in the Solutions Prepared in Examples 1 to 4:

[0076]2.0000 g±0.1 g of each solution prepared according to Examples 1 to 4 was accurately weighed into a clean 100 ml volumetric flask and the exact weight (Wt) recorded. Distilled water was used to dilute to volume and the solution was mixed well. 10.0 ml of the diluted solution was accurately pipetted and transferred to a clean 250 ml conical flask. 50 ml of distilled water was added, along with 3 ml of 20% Sulphuric Acid and 2 drops of Ferroin Indicator Solution. The solution was titrated with 0.1 M Cerium (IV) Sulphate solution until the solution turned to a pure blue color, recording the amount of titrant used (T1). The hydrogen peroxide content of the sample was calculated using the following formula:

T1×0.1×34×100×1001000×2×10×Wt=T1×1.7Wt=HydrogenPeroxide%w / w

[0077]To this solution 1 g Potassium Iodide is added, and titrated with 0.01 M sodium thiosulphate back to the original orange ...

Example

Determination of H2O2 and PAAH in the RTU Solution Prepared in Example 5:

[0078]A 20 ml aliquot of the RTU solution was added to a clean 250 ml conical flask. 50 ml of distilled water was added, along with 3 ml of 20%2O sulphuric acid and 2 drops of Ferroin indicator solution. The solution was titrated with 0.1 M Cerium (IV) Sulphate solution until the solution turned to a pure blue color, recording the amount of titrant used (T1). The hydrogen peroxide content of the sample was calculated using the following formula:

0.1×T1×34×1001000×2×samplevol=T1×0.1720=HydrogenPeroxide%w / v

[0079]To this solution 1 g potassium iodide is added, and titrated with 0.1 M sodium thiosulphate back to the original orange color, recording the titre, T2 (ml).

PeraceticAcid,%w / v=0.1×T2×76×1001000×2×samplevol=T2×0.3820

Determination of H2O2 and PAAH in the Concentrate Solution Prepared in Example 5:

[0080]1.0000 g±0.1 g of the solution prepared according to Example 5 was accurately weighed into a clean 250 ml co...

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Abstract

A multi-part kit system comprising a solid part A which comprises at least one acetyl donor, a liquid part B in the form of an aqueous composition which comprises 3 to 35 wt. % of hydrogen peroxide and one or more parts C, wherein the solid part A and/or the part(s) C comprise at least one surfactant selected from the group consisting of anionic surfactants, amphoteric surfactants and nonionic surfactants, wherein the composition of the parts of the multi-part kit system is such, that directly after being mixed with each other and water in a specified ratio the pH of the mixture is in the range of 5.5 to 8.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 61 / 157747 filed Mar. 5, 2009.FIELD OF THE INVENTION[0002]The invention relates to a multi-part kit system for the preparation of a disinfectant of the peracetic acid type (peracetic acid disinfectant) and the use thereof in a process for the preparation of a disinfectant of the peracetic acid type.BACKGROUND OF THE INVENTION[0003]Disinfectants of the peracetic acid type are well-known. They may be prepared by mixing acetic acid with hydrogen peroxide and letting the mixture react in aqueous medium to yield an aqueous equilibrium peracetic acid solution. However, such aqueous equilibrium peracetic acid solutions make high demands with regard to shipping and storage because of their oxidizing and corrosive properties and relative instability, which do not allow for ease of shipping in high-concentrate form.[0004]An alternative is the in-situ generation of peracetic acid...

Claims

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Application Information

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IPC IPC(8): A01N59/00A01P1/00
CPCA61L2/18A01N37/16
Inventor AMES, KELLY ANNSQUIRE, MARK WALLACE
Owner LANXESS CORP
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